I have recently installed Mint KDE on Dell XPS-9000 desktop, everything works nicely including wireless adaptor but wifi connection always drops after waking up the Dell from sleep !! any help/comment will be appreciated.

when I wake the computer up, I do not have the wireless icon in the panel, computer does not see any of the networks. When I search the panel, I can only see the internet/network setting but I can't establish the connection. If I restart the computer, it detects and connects to my wifi automatically.

Could you probably try looking at the post and following the instructions? Again, I am new and I hope that someone will help you... maybe one of the mods or something... Don't really know what to say...